HP -15C Owner's Handbook Manual page 235

Keystrokes
-
*
3
0
0
3
+
*
6
1
7
1
+
*
2
8
9
0
-
|n
In Run mode, key in two large, negative initial estimates (such as -10 and
-20) and use _ to find the most negative root.
Keystrokes
|¥
10 " v
20 "
´ _ 2
O 0
) )
Appendix D: A Detailed Look at _
Display
008–
009–
010–
011–
012–
013–
014–
015–
016–
017–
018–
019–
020–
021–
022–
023–
024–
025–
026–
027– 43 32
Display
–10.0000
–20
–1.6667
–1.6667
4.0000 –06
30
20
3
0
0
3
40
20
6
1
7
1
40
20
2
8
9
0
30
Run mode.
Initial estimates.
First root.
Stores root for deflation.
Function value near zero.
235